Hmm...I don't see this as road rage, probably because trying to hit the mustang like that could have killed them both. KTLA probably would have said it was road rage if it was.
My theory:
Mustang was probably coming up on the first car, passed on the left, but the truck was already speeding in the second lane. He gave the mustang the horn. The mustang tried to be reasonable and move over, even signaled, but the truck probably tried to pass the mustang on the right just before the mustang, which made the truck jerk left, and because of the cam car, the third lane was occupied, he had to jerk right which resulted in the over correction.
What I don't get is why the truck just didn't go in the fast lane. It appears no one was there, and the rest of traffic was slow enough that he could have went from slow lane to fast and back easily. Maybe he was trying to take the upcoming exit, which is why he tried to pass the on the right. Really though, just slow down. Big trucks roll too much to be ducking in and out of traffic like that.
My theory:
Mustang was probably coming up on the first car, passed on the left, but the truck was already speeding in the second lane. He gave the mustang the horn. The mustang tried to be reasonable and move over, even signaled, but the truck probably tried to pass the mustang on the right just before the mustang, which made the truck jerk left, and because of the cam car, the third lane was occupied, he had to jerk right which resulted in the over correction.
What I don't get is why the truck just didn't go in the fast lane. It appears no one was there, and the rest of traffic was slow enough that he could have went from slow lane to fast and back easily. Maybe he was trying to take the upcoming exit, which is why he tried to pass the on the right. Really though, just slow down. Big trucks roll too much to be ducking in and out of traffic like that.